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Switch cabinet connection and combination apparatus and method of manufacturing the same

a technology of combination apparatus and switch cabinet, which is applied in the direction of switchgear with horizontal withdrawal, electric apparatus casing/cabinet/drawer, high-tension/heavy-dress switch, etc., can solve the problems of gas leakage, sf6 gas harming operators and the ambient environment, and potential threat to the “greenhouse effect” effect, and achieves low volume , the effect of low cos

Inactive Publication Date: 2011-07-07
SHANGHAI SGEG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]In view of the above, the present invention provides a switch cabinet connection and combination apparatus and a method of manufacturing the same, such that the switch cabinet apparatus can be made with high reliability, small volume, and without pollution.

Problems solved by technology

However, under conditions of high power electric arc, spark discharge and corona discharge, the SF6 gas will decompose and dissociate various substances, and the decomposed and dissociated substances will react with oxygen, water, metal and insulating materials to generate some toxic matters.
For a long time, since the gas-filled cabinet filled with SF6 gas as an insulating medium cannot be absolutely sealed, a phenomenon that the gas leaks necessarily exists.
day by day, leakage of the toxic gas generated from the decomposition of SF6 gas will harm operators and the ambient environment;
there are six greenhouse gases that are discharged from human activities, and SF6 gas is one of them, with a lifespan of 3400 years and thus has a potential threat to the “greenhouse effect”;
when the SF6 gas leaks to a certain ratio without charging in time and thus results in inadequacy of the insulating intensity, it will damage devices and cause safety accidents;
a recycling apparatus for the SF6 gas is so expensive and it's popularity is limited.
In addition, it's utilization is poor and is usually used in device mounting and repairing only.
Some of middle or small enterprises are not equipped with the SF6 gas recycling apparatus at all, leading to environment and safety risks.
Presently, there is no SF6 gas recycling apparatus that can regenerate the SF6 gas, so recycling of SF6 gas is very poor.

Method used

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  • Switch cabinet connection and combination apparatus and method of manufacturing the same
  • Switch cabinet connection and combination apparatus and method of manufacturing the same
  • Switch cabinet connection and combination apparatus and method of manufacturing the same

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Experimental program
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first embodiment

[0059]FIG. 1 is a main view of the connection and combination apparatus in the invention, through which 3 lower contact boxes 5, 3 upper contact boxes 6 and the mounting plate 9 which are exposed out of the casing 7 can be seen from this view. The left view thereof is shown in FIG. 2, through which the upper line-in / line-out terminals 2, the solid state insulating layer 1 and the casing 7 can be seen from this view. FIG. 3 is a rear view thereof including the solid state insulating layer 1 and lower line-in / line-out terminals 4. FIG. 4 is a top view including upper line-in / line-out terminals 2 and the mounting plate 9.

[0060]As shown in FIG. 5, in the cutaway view along the A-A direction of FIG. 5, the upper line-in / line-out terminals 2 of the three phases of A, B, C are connected via the conductor 3 to the upper contact box 6 connected to the casing 7, and thus are upper line-in / line-out terminals; the lower line-in / line-out terminals 4 of the three phases of A, B, C are connected v...

second embodiment

[0062]In the second embodiment as shown in FIGS. 6A and 6B, the connection and combination apparatus of the invention are divided into three independent functional units A, B, and C according to different functions of the three phases of A, B and C, as shown in FIG. 6A. The upper line-in / line-out terminals 2 in each functional unit are connected to the upper contact boxes 6 via the conductor 3 as the upper line-in / line-out terminals; the lower line-in / line-out terminals 4 are connected to the lower contact boxes 5 via the conductor 3 as the lower line-in / line-out terminals; then, the solid insulating material 1 is added for pouring once as individual independent functional units for embedded poles. The three independent functional units A, B, and C, together with the mounting plate 9, are fixed at the nuts 8 via bolts 15, as shown in FIG. 6B.

third embodiment

[0063]In the third embodiment as shown in FIGS. 7A and 7B, the connection and combination apparatus of the invention is divided into two functional units D, E, as shown in FIG. 7A. D represents that the upper line-in / line-out terminals 2 are connected to the upper contact box 6 via the conductor 3 as the upper line-in / line-out terminals, and then the solid insulating material 1 is added for pouring molding once as an upper independent functional unit. E represents that the lower line-in / line-out terminals 4 are connected to the lower contact boxes 5 via the conductor 3 as the lower line-in / line-out terminals, and then the solid insulating material 1 is added for pouring molding once as a lower independent functional unit. The two independent functional units D, E, together with the mounting plate 9 are fixed at the nuts 8 via the bolts 15, as shown in FIG. 7B.

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Abstract

The present invention discloses a switch cabinet connection and combination apparatus, wherein upper line-in / line-out terminals of a medium-voltage switch cabinet are connected to upper contact boxes via a conductor, and lower line-in / line-out terminals thereof are connected to lower contact boxes via the conductor, and remaining gaps to be insulated are filled with a solid insulating material. The present invention further discloses a method of manufacturing a switch cabinet connection and combination apparatus including the steps of: connecting upper line-in / line-out terminals of a medium-voltage switch cabinet via a conductor to upper contact boxes; connecting lower line-in / line-out terminals thereof via the conductor to lower contact boxes; and pouring a solid insulating material for molding. The present invention realizes high reliability, small volume, and no pollution of the medium-voltage switch cabinet.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the technical field of power transmission and distribution, and more specifically to a connection and combination apparatus between line-in and line-out (not including a circuit breaker) of a switch cabinet and a method of manufacturing the same.BACKGROUND OF THE INVENTION[0002]At present, a small-volume medium-voltage switch cabinet in a 3.6˜40.5 kV power system is a gas-filled cabinet filled with SF6 (sulfur hexafluoride) gas as an insulating medium. However, under conditions of high power electric arc, spark discharge and corona discharge, the SF6 gas will decompose and dissociate various substances, and the decomposed and dissociated substances will react with oxygen, water, metal and insulating materials to generate some toxic matters. For a long time, since the gas-filled cabinet filled with SF6 gas as an insulating medium cannot be absolutely sealed, a phenomenon that the gas leaks necessarily exists. The following ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H05K5/00H01H11/00
CPCH01H33/021Y10T29/49105H02B13/01H02B11/12
Inventor YAN, HUAIZHONGYU, JIE
Owner SHANGHAI SGEG GROUP
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